5BW - How long before brand new PS4S tires finally have some bite?

[No Usury]

Brand-new 5BW, less than 1K miles.

Was on the freeway cruising at 65 when I decided "Meh. Let's try 75."

Lightly touched the gas... and she got squirrelly... to and fro, left and right.

No brown, but pucker factor was > 0. I mean I lightly touched the gas.

Is this the tires, the car, combination, or something else?

 

[rubberduck]

That doesn’t sound right in general. If the road is oily and in a low gear it is possible, but would take at least 1/2 throttle I would think. Either way if PTM is off the car won’t lose control of the rear.

 

[1BadRS]

Lightly touching the gas doing 65mph in 6th gear did that? I can't imagine what taking off from a stop light looks like

 

[VBhak]

That doesn’t sound right in general. If the road is oily and in a low gear it is possible, but would take at least 1/2 throttle I would think. Either way if PTM is off the car won’t lose control of the rear.

Exactly what rubberduck said. Something seems off. the PS4S tires have amazing traction, especially the OEM ones specifically designed by GM and Michelin for the CT5VBW.

 

[No Usury]

Exactly what rubberduck said. Something seems off. the PS4S tires have amazing traction, especially the OEM ones specifically designed by GM and Michelin for the CT5VBW.

So... what could possibly be off?

 

[jbawden]

What are the ambient temps? Are we sure the precision pack install by your alignment shop was done correctly? Non-precision pack cars exhibit some toe induced wander but that is only under hard acceleration from low speeds. A light roll on at those speeds should exhibit nothing unusual.

 

[Finally-a-V]

The only time I've ever had any kind of really bad lose end is with cool/cold tires. I'm usually careful until the gauge reads "normal".

 

[No Usury]

What are the ambient temps? Are we sure the precision pack install by your alignment shop was done correctly? Non-precision pack cars exhibit some toe induced wander but that is only under hard acceleration from low speeds. A light roll on at those speeds should exhibit nothing unusual.

Here are my post-V8V install alignment specs... anything amiss?

 

[rubberduck]

The only time I've ever had any kind of really bad lose end is with cool/cold tires. I'm usually careful until the gauge reads "normal".

I get the slight rear wander pretty regularly going from 1st into 2nd with anything more than about 1/2 throttle. But it doesn’t surprise me because some city streets are pretty greasy. It helps to pre-warm the tires by laying rubber in 1st before hand.

 

[nordique14]

Here are my post-V8V install alignment specs... anything amiss?

Looks good for a street focused alignment. Way better than whatever came from the factory.

 

[Argent86]

OP's story is same as mine but at 50mph. Just after pikcing up the car with 150 miles on it. Definately got the woo-woo in the back. Whether is was tires or roadway..could have been warbled pavement, no idea. But the squirrel was in it.